fix: add PowerShell-specific command handling

[KJ7LNW]

Description

This PR fixes two critical issues with PowerShell command execution in Windows environments:

1. Command output buffering: PowerShell can emit the ]633;D marker before the actual command output is received by VSCE, causing missing or incomplete output. Added a small sleep delay to ensure output is captured.
2. Duplicate command issue: PowerShell currently has a bug where identical subsequent commands are not executed. Added a command counter to make each command unique.

The fix detects PowerShell environments by checking both the Windows platform and the VSCode terminal default profile configuration.

Test Procedure

Tested on Windows with PowerShell by:

1. Running identical commands in sequence to verify the counter prevents the duplicate command issue
2. Running commands that produce output to verify the sleep delay ensures all output is captured
3. Verified behavior on both explicit PowerShell profile and null profile configurations

Type of Change

• 🐛 Bug fix (non-breaking change which fixes an issue)
• ✨ New feature (non-breaking change which adds functionality)
• 💥 Breaking change (fix or feature that would cause existing functionality to not work as expected)
• 📚 Documentation update

Pre-flight Checklist

• Changes are limited to a single feature, bugfix or chore (split larger changes into separate PRs)
• Tests are passing (npm test) and code is formatted and linted (npm run format && npm run lint)
• I have created a changeset using npm run changeset (required for user-facing changes)
• I have reviewed contributor guidelines

Screenshots

I know this looks insane, but believe me, this is the only way to make it successful in the current state of upstream VSCE shell integration!

Additional Notes

The sleep delay (150ms) was chosen as the minimum value that reliably ensures output capture while maintaining responsiveness.

For some reason the command is always included in the output, but that is better than not having any output at all.

---

Important

Fixes PowerShell command execution issues in Windows by adding a command counter and sleep delay for output capture.

• Behavior:
  • Fixes PowerShell command output buffering by adding a 150ms sleep delay in TerminalProcess.ts to ensure output capture.
  • Resolves duplicate command issue by adding cmdCounter in Terminal.ts and using it in TerminalProcess.ts to make each command unique.
  • Detects PowerShell environments by checking Windows platform and VSCode terminal default profile configuration.
• Code Changes:
  • Adds cmdCounter to Terminal class in Terminal.ts.
  • Modifies run() in TerminalProcess.ts to append cmdCounter and sleep delay to PowerShell commands.
• Testing:
  • Verified on Windows with PowerShell for duplicate command prevention and output capture.

^{This description was created by for a25f1d9. It will automatically update as commits are pushed.}

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[cte]

Ah interesting; thanks for digging in!

[KJ7LNW]

This link has this powershell work around rolled in if anybody wants to test in Windows; this is my site, so trust it if you trust me:

• https://www.linuxglobal.com/out/roo-cline-3.8.4.vsix

Then run code --install-extension roo-cline-3.8.4.vsix and restart your extensions (or close/reopen).